Virginia's Declaration of Rights was drawn upon by Thomas Jefferson for the opening paragraphs of the Declaration of Independence. It was widely copied by the other colonies and became the basis of the Bill of Rights.
The ridges found in flexible metal duct create turbulence and will diminish airflow. NEVER use 4 dryer duct or any plastic duct on a range hood installation. The minimum size duct allowed on most range hoods is 3 Â¼ by 10 which is equivalent to 6 round. More powerful hoods require even larger duct sizes up to 10 round. Consult the specifications for the model you have chosen.
1. Use the template (or instructions) that came with your hood to mark the spot in your wall or cabinet for the vent cutout. Most range hoods will come with a manufacturer's template. Use a laser level or water level to help you mark the exact middle of the wall.ake sure the range hood is large enough to cover your stovetop and that your space above the stovetop leaves at least 24 inches (60.96 cm) of clearance. If you can, purchase a range hood that extends at least one inch (2.5 cm) over all four sides of your cooking area. 1  Buy a hood with the correct CFM rating.